V2O5／ACF催化剂用于烟气低温脱硝的研究  

STUDY ON THE ACTIVITIES OF V_2O_5/ACF CATALYST FOR THE CATALYTIC REDUCTION OF NO AT LOW TEMPERATURE

作　　者：侯亚芹[1,2] 黄张根[1] 马建蓉[3] 

机构地区：[1]中国科学院山西煤炭化学研究所,煤转化国家重点实验室,太原030001 [2]中国科学院研究生院,北京100049 [3]太原科技大学,太原030024

出　　处：《环境化学》2009年第1期26-30,共5页Environmental Chemistry

基　　金：863计划(2007AA052310);煤转化国家重点实验室开放基金资助项目(08-309)．

摘　　要：采用等体积浸渍法制备V_2O_5/ACF,CuO/ACF和Fe_2O_3/ACF催化剂,在H_2O和SO_2存在下,三种催化剂选择性催化还原(SCR)NO_x的活性依次为V_2O_5/ACF>CuO/ACF>Fe_2O_3/ACF.对V_2O_5/ACF催化剂中V_2O_5担载量、反应温度和反应空速对脱硝活性的研究表明,当H_2O和SO_2存在时,V_2O_5的最佳负载量为0.5wt%,在反应温度为180℃,空速为2000 h^(-1)时,NO转化率可达84%,表明该催化剂具有良好的抗H_2O和SO_2毒化的能力.Three catalysts, V2O5/ACF, CuO/ACF and Fe2O3/ACF were prepared by pore volume impregnation method, and the catalytic activity of selective catalytic reduction （SCR） of NOx with NH3 is in the order of V2O5/ACF 〉 CuO/ACF 〉 Fe2O3/ACF in the presence of H2O and SO2. The effects of V2O5 loading, reaction temperature and space velocity on SCR activity were studied. Results show that the best loading of V2O5 is 0. 5wt% and the NO conversion is 84% at 180℃ and 2000h^-1 in the presence of H2O and SO2, which means that 0. 5wt% V2O5/ACF catalyst can well resist the deactivation of H2O and SO2.

关 键 词：V2O5/ACF催化剂 选择性催化还原 脱硝. 

分 类 号：X701[环境科学与工程—环境工程]